New Delhi, Attacking Prime Minister over his mega interaction 'Mera Booth Sabse Mazboot' with BJP Karyakartas, Delhi Chief Minister Arvind Kejriwal on Thursday said the entire nation is engaged in strengthening the soldiers, while Narendra Modi is engaged in strengthening the party's booth. Mr Kejriwal was reacting to Mr Modi's tweet, in which he said that he will be interacting with crores of BJP Karyakartas across several locations #MeraBoothSabseMazboot. Taking to micro-blogging site Twitter, Mr Kejriwal said,'It's very sad sir. The whole country is engaged in strengthening the soldiers, and you are engaged in strengthening the booth?'